This document discusses modern slavery and the role of crowds in combating it. It defines modern slavery and estimates that over 45 million people worldwide are enslaved. It notes that the populations of New York City, London, and Delhi combined is less than the total number of enslaved people globally. Around 70% of slaves are used for labor and 30% for sex trafficking. The document outlines campaigns and actions taken by crowds to pressure governments and organizations to help free slaves and combat slavery. It provides examples of successful campaigns to free anti-slavery activists in Mauritania and pressure the UN to take action against ISIS for slavery. The document suggests crowds may be emerging as a new type of global superpower through their ability